EP 3357969 B1 20230621 - ADHESIVE COMPOSITION
Title (en)
ADHESIVE COMPOSITION
Title (de)
KLEBSTOFFZUSAMMENSETZUNG
Title (fr)
COMPOSITION ADHÉSIVE
Publication
Application
Priority
- JP 2015195297 A 20150930
- JP 2016077417 W 20160916
Abstract (en)
[origin: EP3357969A1] A main object of the present disclosure is to provide a block copolymer composition that allows an adhesive composition having excellent die-cutting properties, softening agent anti-migration performance, mandrel properties and transparency to be obtained. The object is achieved by providing a block copolymer composition comprising: a block copolymer A represented by the following formula (I); and a block copolymer B represented by the following formula (II); characterized in that: a content of an aromatic vinyl monomer unit of the block copolymer A is more than a content of an aromatic vinyl monomer unit of the block copolymer B; a weight average molecular weight of aromatic vinyl polymer block Ar3 (Mw(Ar3)) of the block copolymer B is substantially the same as a weight average molecular weight of aromatic vinyl polymer block Ar1 (Mw(Ar1)) of the block copolymer A; and breaking strength of the block copolymer composition is 8 MPa or less and breaking elongation of the block copolymer composition is 2000% or less.
IPC 8 full level
C08L 53/02 (2006.01); C08F 2/42 (2006.01); C08F 297/04 (2006.01); C09J 153/02 (2006.01)
CPC (source: EP US)
C08F 297/046 (2013.01 - EP US); C08L 53/02 (2013.01 - EP US); C09J 153/02 (2013.01 - EP US); C08L 2205/025 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3357969 A1 20180808; EP 3357969 A4 20190529; EP 3357969 B1 20230621; CN 108026351 A 20180511; JP 6794991 B2 20201202; JP WO2017057050 A1 20180719; TW 201730314 A 20170901; TW I717388 B 20210201; US 10689552 B2 20200623; US 2018265755 A1 20180920; WO 2017057050 A1 20170406
DOCDB simple family (application)
EP 16851224 A 20160916; CN 201680055056 A 20160916; JP 2016077417 W 20160916; JP 2017543139 A 20160916; TW 105130281 A 20160920; US 201615761222 A 20160916